Finding the Fourth Proportional to 158,860,793.70, 218,721,111.57 and 135,562,420.26
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Solution
The fourth proportional to 158,860,793.70, 218,721,111.57 and 135,562,420.26 is: 186,643,680.65
Step by Step Solution
- Step 1: Write the proportion equation
158,860,793.70 : 218,721,111.57 = 135,562,420.26 : x - Step 2: Convert to fraction form
158,860,793.70/218,721,111.57 = 135,562,420.26/x - Step 3: Cross multiply
158,860,793.70x = 218,721,111.57 × 135,562,420.26 - Step 4: Simplify right side
158,860,793.70x = 29,650,363,246,386,684 - Step 5: Solve for x
x = 29,650,363,246,386,684/158,860,793.70 - Step 6: Final answer
x = 186,643,680.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.